PLANof 
SECOND  FLOOR 


PLANofFIRST  FLOOR 


PURDUE  UNIVERSITY, 


LAFAYETTE,  INDIANA. 


SPEED  LATHE. 


The  foregoing  cut  represents  a Speed  Lathe,  designed  for  light  drilling, 
hand  turning  and  polishing.  It  will  “swing”  10  inches,  and  has  a bed  3 
feet  long.  The  bearing  surfaces  are  carefully  scraped  to  fit,  and  provision 
is  made  for  “taking  up”  all  wear.  The  live  spindle  is  hollow,  and  a plunger 
is  always  in  position  for  removing  the  center.  The  tail-stock  is  clamped  or 
released  by  the  movement  of  a lever,  permitting  its  easy  and  rapid  adjust- 
ment to  suit  different  lengths  of  work.  The  machine,  with  counter-shaft 
complete,  weighs  220  lbs.;  it  is  very  strong  and  durable. 

Two  such  Lathes,  tog-ether  with  patterns  for  same,  have  been 
made  complete  by  students  in  the  Mechanical  Department  of 
Purdue  University. 


Horizontal  Engine. 


The  foregoing  cut  represents  a 4 in.  x 6 in.  Horizontal  Slide-valve  Steam 
Engine,  which,  together  with  patterns  for  the  same,  has  been  wholly  made 
by  students  in  the  Mechanical  Department  of  Purdue  University. 


DESCRIPTION  OF  BUILDING. 


Mechanical  Hall,  now  in  process  of  construction,  will  be  wholly  oc. 
cupied  by  the  School  of  Mechanics  and  Engineering.  The  building  is  to  be 
of  brick  and  will  contain  recitation  rooms,  drawing  rooms,  and  shop  rooms 
together  with  other  smaller  rooms.  All  a:e  high  in  the  walls,  well  lighted, 
and  well  ventilated.  The  entire  building,  contain ' nearly  11,000  square 
feet  of  available  floor  surface,  is  admirably  adapt  > tue  uses  for  which 
it  has  been  planned. 

In  the  front  portion  of  the  building,  the  ljvw  r . >or  is  occupied  by  a 
drawing  room  24  ft.  x 33  ft.,  a recitation  room  22  ft.  x 24  ft.,  and  a small 
office;  the  second  floor  by  a drawing  room  33  ft.  x 44  ft.,  and  a recitation 
room  16  ft.  x 22  ft.  The  drawing  rooms  will  be  provided  with  high  drawing 
tables  at  which  the  students  stand  while  at  work.  A drawing  board  and  T 
square  will  be  provided  for  each  table,  and  there  wall  be  a general  supply  of 
large  triangles,  rubber  curves,  protractors,  beam  compasses,  etc.,  for  the 
use  of  students.  The  drawing,  as  well  as  the  recitation  rooms  will  be  fitted 
with  black-boards  of  solid  slate  set  in  the  walls. 

In  the  wings  of  the  building  are  located  the  wood-working  shop,  the 
foundry,  the  forge  shop,  and  the  machine  shops;  and  connected  with  these 
are  the  tool  room,  engine  room,  and  a wash  and  coat  room.  The  wood- 
working shop,  33  ft.  x 80  ft.,  will  contain  20  benches  with  full  sets  of  bench 
working  tools.  10  turning  lathes  3 ft.  bed,  1 turning  lathe  9 ft.  bed,  a 
rotary  planer,  a circular  saw,  a scroll  saw,  and  a grindstone.  The  foundry, 
35  ft.  x 35  ft.,  will  be  equipped  with  a 16-inch  cupola  furnace  for  iron,  a 
crucible  furnace  for  brass,  and  core  ovens,  which,  with  a full  supply  of 
sand,  flasks,  and  molder's  tools,  will  afford  ample  facilities  for  practice  in 
the  art  of  molding  and  casting.  The  forge  shop,  35  ft.  x 35  ft.,  will  contain 
16  forges  with  anvils  and  the  usual  smithing  tools  for  each  forge.  A part 
of  the  whole  number  of  forges  have  recently  been  completed  by  students  in 
the  present  classes  in  Practical  Mechanics,  after  a design  made  specially  to 
meet  the  requirements  of  the  new  shops.  They  will  all  be  supplied  with  air 
blasts  by  power.  The  machine  shop  will  contain  screw-cutting  machine 
lathes,  as  follows:  1 of  10"  swing,  4 of  14"  swing,  2 of  16"  swing,  and  1 of 
28"  swing;  also  a machine  planer,  a shaper,  a universal  milling  machine,  a 
speed  lathe,  two  vertical  drills,  an  emery  grinder,  and  a grindstone.  The 
machines  will  be  provided  with  all  the  small  tools  necessary  to  their  com- 
plete and  economic  action.  The  same  shop  will  have  benches  fitted  with 
vises  for  hand  work  in  metals. 

Motive  power  for  driving  all  machinery  will  be  derived  from  an  Atlas 
Automatic  cut-off  engine  of  35  horse  power. 

The  tool  room,  8 ft.  x 24  ft.,  will  serve  as  a place  of  safe  storage  for 
small  tools  and  supplies. 

The  coat  and  wash  room  is  10  ft.  x 35  ft. 

In  one  of  the  lower  rooms  will  be  placed  a powerful  testing  machine  for 
determining  the  strength  of  materials . By  means  of  this  machine,  student? 
will  become  familiar  with  the  valuable  properties  of  the  various  woods 
and  metals. 


